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The test is very sensitive to how backends start and exit, because it
tests dead-end backends which occur when all the connection slots are
in use. The test failed occasionally in the CI, when the backend that
was launched for the raw_connect_works() check lingered for a while,
and exited only later during the test. When it exited, it released a
connection slot, when the test expected all the slots to be in use at
that time.
The 002_connection_limits.pl test had a similar issue: if the backend
launched for safe_psql() in the test initialization lingers around, it
uses up a connection slot during the test, messing up the test's
connection counting. I haven't seen that in the CI, but when I added a
"sleep(1);" to proc_exit(), the test failed.
To make the tests more robust, restart the server to ensure that the
lingering backends doesn't interfere with the later test steps.
In the passing, fix a bogus test name.
Report and analysis by Jelte Fennema-Nio, Andres Freund, Thomas Munro.
Discussion: https://www.postgresql.org/message-id/CAGECzQSU2iGuocuP+fmu89hmBmR3tb-TNyYKjCcL2M_zTCkAFw@mail.gmail.com
Backpatch-through: 18
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This is required before the creation of a new branch. pgindent is
clean, as well as is reformat-dat-files.
perltidy version is v20230309, as documented in pgindent's README.
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9219093cab2607f modularized log_connections output to allow more
granular control over which aspects of connection establishment are
logged. It converted the boolean log_connections GUC into a list of strings
and deprecated previously supported boolean-like values on, off, true,
false, 1, 0, yes, and no. Those values still work, but they are
supported mainly for backwards compatability. As such, documented
examples of log_connections should not use these deprecated values.
Update references in the docs to deprecated log_connections values. Many
of the tests use log_connections. This commit also updates the tests to
use the new values of log_connections. In some of the tests, the updated
log_connections value covers a narrower set of aspects (e.g. the
'authentication' aspect in the tests in src/test/authentication and the
'receipt' aspect in src/test/postmaster). In other cases, the new value
for log_connections is a superset of the previous included aspects (e.g.
'all' in src/test/kerberos/t/001_auth.pl).
Reported-by: Peter Eisentraut <peter@eisentraut.org>
Author: Melanie Plageman <melanieplageman@gmail.com>
Reviewed-by: Peter Eisentraut <peter@eisentraut.org>
Reviewed-by: Jacob Champion <jacob.champion@enterprisedb.com>
Discussion: https://postgr.es/m/e1586594-3b69-4aea-87ce-73a7488cdc97%40eisentraut.org
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This commit addresses some inconsistencies with how the options of some
routines from PostgreSQL/Test/ are written, mainly for init() and
init_from_backup() in Cluster.pm. These are written as unquoted, except
in the locations updated here.
Changes extracted from a larger patch by the same author.
Author: Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>
Discussion: https://postgr.es/m/87jz8rzf3h.fsf@wibble.ilmari.org
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This commit reshapes the grammar of some commands to apply a more
consistent style across the board, following rules similar to
ce1b0f9da03e:
- Elimination of some pointless used-once variables.
- Use of long options, to self-document better the options used.
- Use of fat commas to link option names and their assigned values,
including redirections, so as perltidy can be tricked to put them
together.
Author: Dagfinn Ilmari Mannsåker <ilmari@ilmari.org>
Discussion: https://postgr.es/m/87jz8rzf3h.fsf@wibble.ilmari.org
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When log_error_verbosity=verbose is configured the test would hand (and then
fail), because of the sqlstate being added between log level and message. Make
regex cope.
Reported-by: Andrew Dunstan <andrew@dunslane.net>
Discussion: https://postgr.es/m/c7ba6bd0-3701-43d1-9087-017777fe9cd2%40dunslane.net
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The first failed connection tests the "regular" connections limit, not
the reserved limit.
In the second failed connection, the username doesn't really matter,
but since the previous successful connections used "regress_reserved",
it seems weird to switch back to "regress_regular" for the
expected-to-fail attempt.
Discussion: https://www.postgresql.org/message-id/fd5e9523-78d3-4270-86b2-fd1b1eeb4fc9@iki.fi
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Some BF animals use very high timeouts due to their slowness. Unfortunately
postmaster/003_start_stop fails if a high timeout is configured, due to
authentication_timeout having a fairly low max.
As this test is reasonably fast, the easiest fix seems to be to cap the
timeout to 600.
Per buildfarm animal skink.
Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
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The test occasionally failed due to unexpected connection limit errors being
encountered after having waited for FATAL errors on another connection. These
spurious failures were caused by the the backend reporting FATAL errors to the
client before detaching from the PGPROC entry. Adding a sleep(1) before
proc_exit() makes it easy to reproduce that problem.
To fix the issue, add a helper function that waits for postmaster to notice
the process having exited. For now this is implemented by waiting for the
DEBUG2 message that postmaster logs in that case. That's not the prettiest
fix, but simple. If we notice this problem elsewhere, it might be worthwhile
to make this more general, e.g. by adding an injection point.
Reported-by: Tomas Vondra <tomas@vondra.me>
Diagnosed-by: Heikki Linnakangas <hlinnaka@iki.fi>
Reviewed-by: Heikki Linnakangas <hlinnaka@iki.fi>
Tested-by: Tomas Vondra <tomas@vondra.me>
Discussion: https://postgr.es/m/ggflhkciwdyotpoie323chu2c2idpjk5qimrn462encwx2io7s@thmcxl7i6dpw
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Most executables already get that testing. To occupy the customary
001_basic.pl name, this renumbers the new-in-October tests of
src/test/postmaster/t.
Reviewed by Thomas Munro.
Discussion: https://postgr.es/m/20241215022701.a1.nmisch@google.com
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Author: Alexander Lakhin <exclusion@gmail.com>
Discussion: https://postgr.es/m/5812a0b9-b0cf-4151-9a14-d9f00e4f2858@gmail.com
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Backpatch-through: 13
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Previously, the postmaster would never try to kill dead-end child
processes, even if there were no other processes left. A dead-end
backend will eventually exit, when authentication_timeout expires, but
if a dead-end backend is the only thing that's preventing the server
from shutting down, it seems better to kill it immediately. It's
particularly important, if there was a bug in the early startup code
that prevented a dead-end child from timing out and exiting normally.
Includes a test for that case where a dead-end backend previously
prevented the server from shutting down.
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://www.postgresql.org/message-id/a102f15f-eac4-4ff2-af02-f9ff209ec66f@iki.fi
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Spotted while doing post-commit review.
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Semi-blind attempt to fix 6a1d0d470 to work on Windows,
along the same lines as a70f2a57f. Per buildfarm.
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Remove unnecessary chatter about "checking if IO::Socket::UNIX works";
our tests should never print anything on stderr unless there's a
problem.
Add .gitignore entry for temporary directory now being left behind
in src/test/postmaster.
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From commit 85ec945b78.
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The code path for launching a dead-end backend because we're out of
slots was not covered by any tests, so add one. (Some tests did hit
the case of launching a dead-end backend because the server is still
starting up, though, so the gap in our test coverage wasn't as big as
it sounds.)
Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://www.postgresql.org/message-id/a102f15f-eac4-4ff2-af02-f9ff209ec66f@iki.fi
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Reviewed-by: Andres Freund <andres@anarazel.de>
Discussion: https://www.postgresql.org/message-id/a102f15f-eac4-4ff2-af02-f9ff209ec66f@iki.fi
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